A rod type punch-pin combined mounting mechanism
Patent Information
- Application Number
- CN202522072608.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-26
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-09-26
AI Technical Summary
现有冲针安装结构如图1所示，其缺点是：一根冲杆只能安装一个冲针冲孔效率受限，而且安装费时费力，更换冲针不容易，另外没有阻止冲针自转的结构，冲针会自转影响冲孔加工
[0010] Beneficial effects: When the punch mounting block is fitted into the first mounting cavity, the first anti-rotation positioning pin is embedded in the first positioning groove, which has the function of preventing the punch mounting block from rotating. The screw is screwed into the first screw hole to hold the punch assembly fixture in place, which is convenient for installation. The punch mounting block has one or more punches at the bottom to meet the requirements of different pattern punching and can improve punching efficiency.
Smart Images
Figure CN224751495U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of punching machines, specifically to a rod-type punch assembly mechanism. Background Technology
[0002] A leather punching machine is a device used to process various materials such as leather, cowhide, sheepskin, artificial leather, plastics, PU, EVX, and PVC. The punches of the punching machine are the parts that directly contact the material; they come in different sizes and models. In actual use, when it is necessary to change the hole pattern, a different model of punch is used. The existing punch installation structure is as follows: Figure 1 As shown, its disadvantages are: only one punch can be installed on one punch rod, which limits the punching efficiency. Moreover, installation is time-consuming and laborious, and it is not easy to replace the punch. In addition, there is no structure to prevent the punch from rotating, which will affect the punching process. Utility Model Content
[0003] To address the aforementioned shortcomings of existing technologies, the technical problem this utility model aims to solve is how to optimize the punch mounting structure to achieve rapid installation, prevent rotation, and allow multiple punches to be mounted on a single punch rod. The specific technical solution is as follows:
[0004] A rod-type punch assembly mounting mechanism includes a punch, a punch mounting block, a first anti-rotation positioning pin, and a punch assembly fixture. The punch is mounted on the bottom of the punch mounting block, and the first anti-rotation positioning pin is mounted on the outer periphery of the punch mounting block. The punch assembly fixture has a first positioning groove at its bottom that mates with the first anti-rotation positioning pin. The punch assembly fixture has a first mounting cavity inside for mounting the punch mounting block, and a first screw hole on the outer periphery of the punch assembly fixture. The first screw hole communicates with the first mounting cavity. When the punch mounting block is fitted into the first mounting cavity, the first anti-rotation positioning pin is embedded in the first positioning groove. A screw is screwed into the first screw hole to hold the punch assembly fixture in place. A punch rod is mounted on top of the punch mounting block.
[0005] As a preferred embodiment of this utility model, there are one or more punches at the bottom of the punch mounting block, and the punches are interference-fitted into the bottom of the punch mounting block.
[0006] As a preferred embodiment of this utility model, the punch assembly fixture has an internal waste suction chamber and multiple waste suction vents on its outer periphery, which communicate with the waste suction chamber. The punch mounting block has a waste suction channel, and the punch is a hollow structure that connects to the waste suction chamber through the waste suction channel.
[0007] In a preferred embodiment of this utility model, the first positioning groove is arranged opposite to the first screw hole.
[0008] As a preferred embodiment of this utility model, a second anti-rotation positioning pin is installed on the outer periphery of the punch rod, a second positioning groove that cooperates with the second anti-rotation positioning pin is provided on the top of the punch assembly fixture, a second mounting cavity for installing the punch rod is provided inside the punch assembly fixture, a second screw hole is provided on the outer periphery of the punch assembly fixture, the second screw hole communicates with the second mounting cavity, when the punch rod is sleeved into the second mounting cavity, the second anti-rotation positioning pin is embedded in the second positioning groove; the screw is screwed into the second screw hole to hold the punch rod in place.
[0009] In a preferred embodiment of this utility model, the second positioning groove is arranged opposite to the second screw hole.
[0010] Beneficial effects: When the punch mounting block is fitted into the first mounting cavity, the first anti-rotation positioning pin is embedded in the first positioning groove, which has the function of preventing the punch mounting block from rotating. The screw is screwed into the first screw hole to hold the punch assembly fixture in place, which is convenient for installation. The punch mounting block has one or more punches at the bottom to meet the requirements of different pattern punching and can improve punching efficiency. Attached Figure Description
[0011] Figure 1 This is a structural cross-sectional view of existing technology;
[0012] Figure 2 This is the front view of this utility model;
[0013] Figure 3 yes Figure 2 Sectional view along the AA direction;
[0014] Figure 4 This is a cross-sectional view of the punch assembly fixture of this utility model. Detailed Implementation
[0015] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings:
[0016] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the position or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0018] like Figures 2-4 As shown, a rod-type punch assembly mounting mechanism includes a punch 1, a punch mounting block 2, a first anti-rotation positioning pin 3, and a punch assembly fixture 4. The punch 1 is mounted on the bottom of the punch mounting block 2. The first anti-rotation positioning pin 3 is mounted on the outer periphery of the punch mounting block 2. The punch assembly fixture 4 has a first positioning groove 41 below it that cooperates with the first anti-rotation positioning pin 3. The punch assembly fixture 4 has a first mounting cavity 4a inside it for mounting the punch mounting block 2. The punch assembly fixture 4 has a first screw hole 42 on its outer periphery, which communicates with the first mounting cavity 42. The first positioning groove 41 is opposite to the first screw hole 42. When the punch mounting block 2 is fitted into the first mounting cavity 4a, the first anti-rotation positioning pin 3 is embedded in the first positioning groove 41 to prevent the punch mounting block 2 from rotating. A screw (not shown) is screwed into the first screw hole 42 to hold the punch assembly fixture 42 in place. A punch rod 5 is mounted on top of the punch mounting block 2.
[0019] Specifically, there is one or more punches at the bottom of the punch mounting block 2. The punch 1 is interference-fitted into the bottom of the punch mounting block 2. In this embodiment, there are three punches. Multiple punches can improve the punching efficiency.
[0020] Specifically, the punch assembly fixture 4 has a waste suction chamber 43 inside, and multiple waste suction vents 44 are provided on the outer periphery of the punch assembly fixture 4. The waste suction vents 44 are connected to the waste suction chamber 43. The punch mounting block 2 has a waste suction channel 21. The punch 1 has a hollow structure. The punch is connected to the waste suction chamber 43 through the waste suction channel 21. This waste structure helps to quickly discharge waste.
[0021] Specifically, a second anti-rotation positioning pin 6 is installed on the outer periphery of the punch rod 1. A second positioning groove 45 that mates with the second anti-rotation positioning pin 6 is provided on the top of the punch assembly fixture 4. A second mounting cavity 46 for installing the punch rod 5 is provided inside the punch assembly fixture 4. A second screw hole 47 is provided on the outer periphery of the punch assembly fixture 4. The second positioning groove 45 and the second screw hole 47 are opposite to each other. The second screw hole 47 communicates with the second mounting cavity 45. When the punch rod 5 is inserted into the second mounting cavity 45, the second anti-rotation positioning pin 6 is embedded in the second positioning groove 45. A screw (not shown) is screwed into the second screw hole 46 to hold the punch rod 5 in place.
[0022] The above description is a further detailed explanation of the present utility model in conjunction with specific preferred embodiments. It should not be considered that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the protection scope of the present utility model.
Claims
1. A rod-type punch assembly mounting mechanism, comprising a punch and a punch mounting block, wherein the punch is mounted on the bottom of the punch mounting block, characterized in that: It also includes a first anti-rotation positioning pin and a punch assembly fixture. The first anti-rotation positioning pin is installed on the outer periphery of the punch mounting block. The punch assembly fixture has a first positioning groove that mates with the first anti-rotation positioning pin at its bottom. The punch assembly fixture has a first mounting cavity for installing the punch mounting block inside. The punch assembly fixture has a first screw hole on its outer periphery, which communicates with the first mounting cavity. When the punch mounting block is fitted into the first mounting cavity, the first anti-rotation positioning pin is embedded in the first positioning groove. The screw is screwed into the first screw hole to hold the punch assembly fixture in place. A punch rod is installed on top of the punch mounting block.
2. The rod-type punch assembly mechanism according to claim 1, characterized in that: There are one or more punches at the bottom of the punch mounting block, and the punches are interference-fitted into the bottom of the punch mounting block.
3. A rod-type punch assembly mechanism according to claim 1 or 2, characterized in that: The punch assembly fixture has an internal waste suction chamber and multiple waste suction vents on its outer periphery. These vents communicate with the waste suction chamber. The punch mounting block has a waste suction channel. The punch is a hollow structure and connects to the waste suction chamber through the waste suction channel.
4. The rod-type punch assembly mechanism according to claim 1, characterized in that: The first positioning groove is positioned opposite to the first screw hole.
5. The rod-type punch assembly mechanism according to claim 1, characterized in that: A second anti-rotation positioning pin is installed on the outer periphery of the punch rod. A second positioning groove that mates with the second anti-rotation positioning pin is provided on the top of the punch assembly fixture. A second mounting cavity for installing the punch rod is provided inside the punch assembly fixture. A second screw hole is provided on the outer periphery of the punch assembly fixture. The second screw hole communicates with the second mounting cavity. When the punch rod is inserted into the second mounting cavity, the second anti-rotation positioning pin is embedded in the second positioning groove. The screw is screwed into the second screw hole to hold the punch rod in place.
6. The rod-type punch assembly mechanism according to claim 5, characterized in that: The second positioning groove is positioned opposite to the second screw hole.